200243203453 has 2 divisors, whose sum is σ = 200243203454. Its totient is φ = 200243203452.

The previous prime is 200243203423. The next prime is 200243203463. The reversal of 200243203453 is 354302342002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123479851609 + 76763351844 = 351397^2 + 277062^2 .

It is a cyclic number.

It is not a de Polignac number, because 200243203453 - 2⁹ = 200243202941 is a prime.

It is a super-2 number, since 2×200243203453² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200243203423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100121601726 + 100121601727.

It is an arithmetic number, because the mean of its divisors is an integer number (100121601727).

Almost surely, 2^200243203453 is an apocalyptic number.

It is an amenable number.

200243203453 is a deficient number, since it is larger than the sum of its proper divisors (1).

200243203453 is an equidigital number, since it uses as much as digits as its factorization.

200243203453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 200243203453 its reverse (354302342002), we get a palindrome (554545545455).

The spelling of 200243203453 in words is "two hundred billion, two hundred forty-three million, two hundred three thousand, four hundred fifty-three".